WPP plc, (Wire and Plastic Products) is a British
multinational advertising and
public relations company with its main management office in London, England, and its executive office in
Dublin, Ireland. It is the world's largest advertising company by revenues, and employs around 179,000 people in 3,000 offices across 111 countries. It owns a number of advertising, public relations and
market research networks, including
Millward Brown,
Grey,
Burson-Marsteller,
Hill & Knowlton,
JWT,
Ogilvy & Mather,
TNS,
Young & Rubicam and
Cohn & Wolfe.